package main

import (
	"net/http"
	"os"

	"gopkg.in/yaml.v3"
)

func main() {
	if err := run(); err != nil {
		panic(err)
	}
}

func run() error {
	f := os.Args[1]
	b, err := os.ReadFile(f)
	if err != nil {
		return err
	}

	var data struct {
		Routes map[string]string
	}
	if err := yaml.Unmarshal(b, &data); err != nil {
		return err
	}

	return http.ListenAndServe(":3001", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		k := r.URL.Path

		v, ok := data.Routes[k]
		if !ok {
			http.NotFound(w, r)
			return
		}

		w.Header().Set("Content-Type", "text/html")
		w.Write([]byte(v))
	}))
}